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ds3231: minor code style fixes.

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Comment, on the week day start.
This commit is contained in:
Our Air Quality 2016-09-30 00:49:14 +10:00
parent 56a73454dd
commit 5aabd643da
1 changed files with 4 additions and 2 deletions
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6
extras/ds3231/ds3231.c
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@ -16,13 +16,13 @@
/* Convert normal decimal to binary coded decimal */ /* Convert normal decimal to binary coded decimal */
static inline uint8_t decToBcd(uint8_t dec) static inline uint8_t decToBcd(uint8_t dec)
{ {
return(((dec / 10) * 16) + (dec % 10)); return (dec / 10) * 16 + dec % 10;
} }
/* Convert binary coded decimal to normal decimal */ /* Convert binary coded decimal to normal decimal */
static inline uint8_t bcdToDec(uint8_t bcd) static inline uint8_t bcdToDec(uint8_t bcd)
{ {
return(((bcd / 16) * 10) + (bcd % 16)); return (bcd / 16) * 10 + bcd % 16;
} }
/* Send a number of bytes to the rtc over i2c /* Send a number of bytes to the rtc over i2c
@ -49,6 +49,8 @@ int ds3231_setTime(struct tm *time)
data[0] = decToBcd(time->tm_sec); data[0] = decToBcd(time->tm_sec);
data[1] = decToBcd(time->tm_min); data[1] = decToBcd(time->tm_min);
data[2] = decToBcd(time->tm_hour); data[2] = decToBcd(time->tm_hour);
/* The week data must be in the range 1 to 7, and to keep the start on the
* same day as for tm_wday have it start at 1 on Sunday. */
data[3] = decToBcd(time->tm_wday + 1); data[3] = decToBcd(time->tm_wday + 1);
data[4] = decToBcd(time->tm_mday); data[4] = decToBcd(time->tm_mday);
data[5] = decToBcd(time->tm_mon + 1); data[5] = decToBcd(time->tm_mon + 1);